यदि \(3\theta+45^\circ\) और \(\theta-135^\circ\) सहसमापी हैं तो \( \theta \) का एक मान क्या है?
If \(3\theta+45^\circ\) and \(\theta-135^\circ\) are coterminal, what is one value of \( \theta \)?
Explanation opens after your attempt
A. \(90^\circ\)
Concept
(3\theta+45^\circ-\(\theta-135^\circ\)=360^\circ) gives \(2\theta+180^\circ=360^\circ\) and \( \theta=90^\circ \). Keep the difference as a multiple of \(360^\circ\).
Why this answer is correct
The correct answer is A. \(90^\circ\). (3\theta+45^\circ-\(\theta-135^\circ\)=360^\circ) gives \(2\theta+180^\circ=360^\circ\) and \( \theta=90^\circ \). Keep the difference as a multiple of \(360^\circ\).
Exam Tip
(3\theta+45^\circ-\(\theta-135^\circ\)=360^\circ) से \(2\theta+180^\circ=360^\circ\) और \( \theta=90^\circ \) है। अंतर को \(360^\circ\) का गुणज रखें।
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